MMEx with SPI Slave to allow legacy devices to communicate with modern media such as USB, SD cards, the internet and all of the mbed\'s other interfaces
Dependencies: NetServices MSCUsbHost mbed TMP102 SDFileSystem
mmex.cpp@0:67a55a82ce06, 2011-02-27 (annotated)
- Committer:
- DeMein
- Date:
- Sun Feb 27 18:54:40 2011 +0000
- Revision:
- 0:67a55a82ce06
Version as submitted to the NXP Design Challenge
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
DeMein | 0:67a55a82ce06 | 1 | /* MMEx for MBED - MMEx specific functions |
DeMein | 0:67a55a82ce06 | 2 | * Copyright (c) 2011 MK |
DeMein | 0:67a55a82ce06 | 3 | * |
DeMein | 0:67a55a82ce06 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
DeMein | 0:67a55a82ce06 | 5 | * of this software and associated documentation files (the "Software"), to deal |
DeMein | 0:67a55a82ce06 | 6 | * in the Software without restriction, including without limitation the rights |
DeMein | 0:67a55a82ce06 | 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
DeMein | 0:67a55a82ce06 | 8 | * copies of the Software, and to permit persons to whom the Software is |
DeMein | 0:67a55a82ce06 | 9 | * furnished to do so, subject to the following conditions: |
DeMein | 0:67a55a82ce06 | 10 | * |
DeMein | 0:67a55a82ce06 | 11 | * The above copyright notice and this permission notice shall be included in |
DeMein | 0:67a55a82ce06 | 12 | * all copies or substantial portions of the Software. |
DeMein | 0:67a55a82ce06 | 13 | * |
DeMein | 0:67a55a82ce06 | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
DeMein | 0:67a55a82ce06 | 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
DeMein | 0:67a55a82ce06 | 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
DeMein | 0:67a55a82ce06 | 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
DeMein | 0:67a55a82ce06 | 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
DeMein | 0:67a55a82ce06 | 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
DeMein | 0:67a55a82ce06 | 20 | * THE SOFTWARE. |
DeMein | 0:67a55a82ce06 | 21 | */ |
DeMein | 0:67a55a82ce06 | 22 | |
DeMein | 0:67a55a82ce06 | 23 | /** |
DeMein | 0:67a55a82ce06 | 24 | \file mmex.cpp |
DeMein | 0:67a55a82ce06 | 25 | \brief MMEx specific functions |
DeMein | 0:67a55a82ce06 | 26 | */ |
DeMein | 0:67a55a82ce06 | 27 | |
DeMein | 0:67a55a82ce06 | 28 | #include "mmex.h" |
DeMein | 0:67a55a82ce06 | 29 | |
DeMein | 0:67a55a82ce06 | 30 | char inbuf[bufsize]; |
DeMein | 0:67a55a82ce06 | 31 | char outbuf[bufsize]; |
DeMein | 0:67a55a82ce06 | 32 | |
DeMein | 0:67a55a82ce06 | 33 | int rx_max = 0; |
DeMein | 0:67a55a82ce06 | 34 | int tx_max = 0; |
DeMein | 0:67a55a82ce06 | 35 | |
DeMein | 0:67a55a82ce06 | 36 | int err_num = 0; // global error number |
DeMein | 0:67a55a82ce06 | 37 | int last_err = 0; |
DeMein | 0:67a55a82ce06 | 38 | bool upcase = false; // global for change of case for text output |
DeMein | 0:67a55a82ce06 | 39 | |
DeMein | 0:67a55a82ce06 | 40 | const char *err_text[] = { |
DeMein | 0:67a55a82ce06 | 41 | err_0, err_1, err_2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
DeMein | 0:67a55a82ce06 | 42 | err_10, err_11, err_12, err_13, err_14, err_15, err_16, err_17, err_18, err_19, |
DeMein | 0:67a55a82ce06 | 43 | err_20, err_21, err_22, err_23, err_24, err_25, err_26, err_27, err_28, err_29, |
DeMein | 0:67a55a82ce06 | 44 | err_30, err_31, err_32, err_33, err_34, err_35, err_36, err_37, err_38, err_39 } ; |
DeMein | 0:67a55a82ce06 | 45 | |
DeMein | 0:67a55a82ce06 | 46 | /** send the MMEx prompt sequence |
DeMein | 0:67a55a82ce06 | 47 | * |
DeMein | 0:67a55a82ce06 | 48 | */ |
DeMein | 0:67a55a82ce06 | 49 | void send_prompt() { |
DeMein | 0:67a55a82ce06 | 50 | mldl.tx_add(c_escape); |
DeMein | 0:67a55a82ce06 | 51 | mldl.tx_add(c_prompt); |
DeMein | 0:67a55a82ce06 | 52 | } |
DeMein | 0:67a55a82ce06 | 53 | |
DeMein | 0:67a55a82ce06 | 54 | /** send the MMEx welcome message |
DeMein | 0:67a55a82ce06 | 55 | * |
DeMein | 0:67a55a82ce06 | 56 | */ |
DeMein | 0:67a55a82ce06 | 57 | void welcome() { |
DeMein | 0:67a55a82ce06 | 58 | DBG_msg("MMEx welcome", msg_welcome msg_version); |
DeMein | 0:67a55a82ce06 | 59 | char str[] = msg_welcome msg_version; |
DeMein | 0:67a55a82ce06 | 60 | upstring(str); |
DeMein | 0:67a55a82ce06 | 61 | mldl.tx_string(str); |
DeMein | 0:67a55a82ce06 | 62 | } |
DeMein | 0:67a55a82ce06 | 63 | |
DeMein | 0:67a55a82ce06 | 64 | /** send the actual MMEx status |
DeMein | 0:67a55a82ce06 | 65 | * |
DeMein | 0:67a55a82ce06 | 66 | */ |
DeMein | 0:67a55a82ce06 | 67 | void send_status() { |
DeMein | 0:67a55a82ce06 | 68 | char str[] = "MMEx running"; |
DeMein | 0:67a55a82ce06 | 69 | upstring(str); |
DeMein | 0:67a55a82ce06 | 70 | mldl.tx_string(str); |
DeMein | 0:67a55a82ce06 | 71 | } |
DeMein | 0:67a55a82ce06 | 72 | |
DeMein | 0:67a55a82ce06 | 73 | /** send error message, command not recognized |
DeMein | 0:67a55a82ce06 | 74 | * |
DeMein | 0:67a55a82ce06 | 75 | */ |
DeMein | 0:67a55a82ce06 | 76 | void do_maindefault() { |
DeMein | 0:67a55a82ce06 | 77 | // command not recognized |
DeMein | 0:67a55a82ce06 | 78 | DBG_msg("main", "parameter not recognized"); |
DeMein | 0:67a55a82ce06 | 79 | send_error(err_notrecognized); |
DeMein | 0:67a55a82ce06 | 80 | } |
DeMein | 0:67a55a82ce06 | 81 | |
DeMein | 0:67a55a82ce06 | 82 | /** send an integer value to the SPI interface |
DeMein | 0:67a55a82ce06 | 83 | * |
DeMein | 0:67a55a82ce06 | 84 | * @param val value to be sent |
DeMein | 0:67a55a82ce06 | 85 | * |
DeMein | 0:67a55a82ce06 | 86 | */ |
DeMein | 0:67a55a82ce06 | 87 | void send_int(int val) { |
DeMein | 0:67a55a82ce06 | 88 | sprintf(outbuf, "%d", val); |
DeMein | 0:67a55a82ce06 | 89 | mldl.tx_string(outbuf); |
DeMein | 0:67a55a82ce06 | 90 | } |
DeMein | 0:67a55a82ce06 | 91 | |
DeMein | 0:67a55a82ce06 | 92 | /** send a 2-digit integer value to the SPI interface |
DeMein | 0:67a55a82ce06 | 93 | * |
DeMein | 0:67a55a82ce06 | 94 | * @param val value to be sent |
DeMein | 0:67a55a82ce06 | 95 | * |
DeMein | 0:67a55a82ce06 | 96 | */ |
DeMein | 0:67a55a82ce06 | 97 | void send_2int(int val) { |
DeMein | 0:67a55a82ce06 | 98 | sprintf(outbuf, "%02d", val); |
DeMein | 0:67a55a82ce06 | 99 | mldl.tx_string(outbuf); |
DeMein | 0:67a55a82ce06 | 100 | } |
DeMein | 0:67a55a82ce06 | 101 | |
DeMein | 0:67a55a82ce06 | 102 | /** global error message processing, send error sequence |
DeMein | 0:67a55a82ce06 | 103 | * and prepare message string |
DeMein | 0:67a55a82ce06 | 104 | * |
DeMein | 0:67a55a82ce06 | 105 | * @param val error value |
DeMein | 0:67a55a82ce06 | 106 | * |
DeMein | 0:67a55a82ce06 | 107 | */ |
DeMein | 0:67a55a82ce06 | 108 | void send_error(int val) { |
DeMein | 0:67a55a82ce06 | 109 | char str[20]; |
DeMein | 0:67a55a82ce06 | 110 | sprintf(str, "%02d", val); |
DeMein | 0:67a55a82ce06 | 111 | err_num = val; |
DeMein | 0:67a55a82ce06 | 112 | last_err = val; |
DeMein | 0:67a55a82ce06 | 113 | DBG_msg("error found: ", str); |
DeMein | 0:67a55a82ce06 | 114 | sprintf(str, "%02d:", err_num); |
DeMein | 0:67a55a82ce06 | 115 | param[par_E_].assign(str); |
DeMein | 0:67a55a82ce06 | 116 | param[par_E_] += err_text[err_num]; |
DeMein | 0:67a55a82ce06 | 117 | mldl.tx_add(c_escape); |
DeMein | 0:67a55a82ce06 | 118 | mldl.tx_add(c_error); |
DeMein | 0:67a55a82ce06 | 119 | } |
DeMein | 0:67a55a82ce06 | 120 | |
DeMein | 0:67a55a82ce06 | 121 |